1. DNA Structure

3. _______________ – a special virus that infects bacteria
- attaches to a bacteria cell and eats its genetic information then ____________________________________to make “clones” of itself.

4. Bacteriophage – a special virus that infects bacteria
- attaches to a bacteria cell and eats its genetic information then _____________________________________to make “clones” of itself.

5. Bacteriophage – a special virus that infects bacteria
- attaches to a bacteria cell and eats its genetic information then replaces it with its own genetic information to make “clones” of itself.

6. DNA – Deoxyribonucleic Acid
-________genetic information
- _______ genetic information from parents to offspring

7. DNA – Deoxyribonucleic Acid
- stores genetic information
-___________genetic information from parents to offspring

8. DNA – Deoxyribonucleic Acid
- stores genetic information
- passes genetic information from
parents to offspring

9. DNA is made up of _____________

10. DNA is made up of Nucleotides.

11. Each Nucleotide has 3 parts:
1. ___________________
2. ___________________
3. ___________________

12. Each Nucleotide has 3 parts:
1. Phosphate group
2. Deoxyribose – sugar
3. Nitrogen base - proteins

13. 3. ___________________ 4. ___________________ 4 nitrogen bases
1. ___________________ ___________________
3. ___________________
4. ___________________

14. Phosphate Group + Deoxyribose make up the ____________
4 nitrogen bases
1. Adenine
2. Thymine
3. Cytosine
4. Guanine
Phosphate Group + Deoxyribose make up the ____________
Bases make up the ______of the ladder

15. Phosphate Group + Deoxyribose make up the sides of the ladder
4 nitrogen bases
1. Adenine
2. Thymine
3. Cytosine
4. Guanine
Phosphate Group + Deoxyribose make up the sides of the ladder
Bases make up the ______of the ladder

16. Phosphate Group + Deoxyribose make up the backbone
4 nitrogen bases
1. Adenine
2. Thymine
3. Cytosine
4. Guanine
Phosphate Group + Deoxyribose make up the backbone
Bases make up the steps of the ladder

17. Bases are paired and held together by ________________(H-bonds).
_________ pairs with __________________
_________pairs with __________________

18. Bases are paired and held together by Hydrogen Bonds (H-bonds).
____________ pairs with __________________

19. Bases are paired and held together by Hydrogen Bonds (H-bonds).
Adenine pairs with Thymine (A-T)
________ pairs with _____________

20. Bases are paired and held together by Hydrogen Bonds (H-bonds).
Adenine pairs with Thymine (A-T)
Cytosine pairs with Guaninie (G-C)

21. A-
T -
G -
C - T-
A - C- G- T A C G

22. _______ – Adenine and Guanine – have 2 rings
____________ – Cytosine
and Thymine -have one ring

23. Purines – Adenine and Guanine – have 2 rings
____________ – Cytosine
and Thymine -have one ring

24. Purines – Adenine and Guanine – have 2 rings
Pyrimidines – Cytosine
and Thymine -have one ring

25. The shape of DNA is called the __________
The shape of DNA is called the __________. It looks like a _____________.
The Double Helix ______ DNA and makes it more ____________ so that it _____________________.

26. The shape of DNA is called the Double Helix
The shape of DNA is called the Double Helix. It looks like a ____________________.
The Double Helix ______ DNA and makes it more __________so that it ______________________.

27. The shape of DNA is called the Double Helix
The shape of DNA is called the Double Helix. It looks like a twisted ladder.
The Double Helix ______ DNA and makes it more __________ so that it _____________________.

28. The shape of DNA is called the Double Helix
The shape of DNA is called the Double Helix. It looks like a twisted ladder.
The Double Helix twists DNA and makes it more __________ so that it _____________________.

29. The shape of DNA is called the Double Helix
The shape of DNA is called the Double Helix. It looks like a twisted ladder.
The Double Helix twists DNA and makes it more compact so that it _____________________.

30. The shape of DNA is called the Double Helix
The shape of DNA is called the Double Helix. It looks like a twisted ladder.
The Double Helix twists the shape of DNA and makes it more compact so that it fits into the nucleus.

31. _______________________________– scientists who discovered the double- helix shape of DNA

32. James Watson and Francis Crick – scientists who discovered the double- helix shape of DNA

33.
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